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Algebra Homework Help : Expansion of (a+b+c)2

 
Preparation Just what you need to know !

How to Expand (a+b+c)2 ?

(a + b + c)2
= (a + b + c)(a + b + c)
= a(a + b + c) + b(a + b + c) + c(a + b + c)
= a2 + ab + ac + ba + b2 + bc + ca + cb + c2

 

Adding like terms, the final formula (worth remembering) is

(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ac


Practice Exercise for Algebra Module on Expansion of (a + b + c)2

 

 

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